Those are serial numbers, and some are more rare than others. If you happen to have paper money with a unique or interesting serial number, it may be worth much more than face value.

JOPLIN, Mo. (KSNF) — That $1, $5, or $10 bill in your wallet might be worth way more than its face value. Knowing what your paper money might be worth is all in the serial number. Serial numbers ...

There are worse things than having a wallet stuffed with $20 bills, especially in this economy. But did you ever stop to consider that those twenties in your pocket could be worth more than their ...

Something that's always on the mind of sports card collectors: How rare is my card? While this question is important when determining long-term card values, it’ ...

Rare coins and banknotes could be easier to spot than you may have initially thought. You don't necessarily need to be an ...

But some of the less-used currency could be worth far more than face value. Depending on the year and how a $2 bill was circulated, some $2 bills are now worth thousands.

JOPLIN, Mo. (KSNF) — That $1, $5, or $10 bill in your wallet might be worth way more than its face value. Knowing what your paper money might be worth is all in the serial number. Serial numbers ...